import java.util.ArrayList;

public class demo2 {
    public int jumpFloor(int target) {
        if (target == 1 | target == 2) {
            return 1;
        } else if (target == 0) {
            return 0;
        } else {
            return jumpFloor(target - 1);

        }
    }

    //1 2 3 4 5 6 7
    public ArrayList<String> generateParenthesis(int n) {
        // write code here
        ArrayList<String> a = new ArrayList<>();
        if (n == 1) {
            a.add("()");
        }


        return a;
    }
}
